Adjustable fin for vessels.



No.- 767,827. PATENTED AUG. 16, 1904. H. J. NOLL.

ADJUSTABLE PIN FOR VESSELS.

APPLIGATION FILED JAN. 30. 1904. 4 H0 MODEL. 2 SHEETS-SHEET 1.

I g I @HVOWK/ No. 767,827. PATENTED AUG. 16, 1904. H. J. NOLL.

ADJUSTABLE PIN FOR VESSELS. APPLIOATION'PILED AN. 30. 1904.

N0 MODEL. 2 SHEETS-SHEET 2.

2w Mir f UNrTED STATES Patented August 16, 1904.

PATENT Grains.

ADdUSTABLE ens FOR vEssELs.

SPECIFICATION forming part of Letters lPatent No. 767,827, dated August16, 1904. Application filed January 30, 1904. .Serial No. 191,260. (Nomodel.)

To all whom it may concern/.-

Be it known that I, HENRY Jenn NoLL, a citizen of the United States, anda resident of Milwaukee, in the county of Milwaukee and State ofWisconsin, have invented certain new and useful Improvements inAdjustable Fins for Vessels; and I do hereby declare that the followingis a full, clear, and exact description thereof.

The main object of my invention is to obtain greater speed of marinevessels with the same expenditure of power ordinarily employed; and itconsists, primarily, in providing such a vessel with submerged fore andaft side blades adjustable to incline upward in the direction ofmovement of said vessel.

It further consists of the same blades adjustable to lie alongside thevessel and in structural details, all as hereinafter particularly setforth with reference to the accompanying drawings, and subsequentlyclaimed.

Figure 1 of the drawings represents a transverse section view of afragment of a marine vessel provided with adjustable fore and aft sideblades in accordance with my invention; Fig. 2, a side elevation of thesame; Fig. 3, a sectional view on the line 3 3 in the first figure ofthe series, and Fig. 4 a diagram of the vessel equipped on both sideswith a series of the blades.

Referring by letter to the drawings, A indicates the hull of a marinevessel intended to be propelled by power generated aboard the same. Overthe keel of the vessel are standards B, in whidh a fore-and-aft shaft Chas its bearings, suitable means being employed in practice to impartrotary motion to the shaft. Loose on said shaft is a worm D, having aclutch-hub, and this worm is in mesh with a worm-wheel E, fast onanother shaft F athwart the vessel. The shaft F extends through, thesides of the vessel in stufiingboxes a suitable distance below thewater-line, and by means of hinge-couplings (Jr blades H are connectedto the ends of said shaft.

Each of the blades H is preferably provided with an eye I), connected bya chain c to another eye, d, projecting from the side of the vessel,whereby loss of said blade isprevented in case it becomes detached fromthe shaft F aforesaid. Another hinge-coupling, I, in connection witheach blade is pivotally connected to one end of a link J to form auniversal joint, and the other end of the link has swivel connectionwith a nut K on a screw L, for which the adjacent side of the vessel isprovided with bearings. The screws L are in bevel-gear connection withthe ends of a shaft M athwart the vessel in a hangerN and other suitablebearings below deck. The hanger and an arm 6 of one of the standards Bserve as bearings for a shaft P in bevel-gear connection with the shaftM, and a bevel gearwheel Q, fast on said shaft P, meshes with a -6similar wheel R, that is loose on the shaft C and clutch-toothed on oneof its sides. A clutch S is splined on the shaft C between the clutchend of the hub of the worm D and the clutch-toothed side of gear-wheelR, and a spanner T, embracing the clutch, is rigidly connected to alongitudinally-'adjustable rod U, guided in the standards B, this rodbeing in connection with a hand-lever V, that is operated to throw saidclutch. The hand-lever is shown provided with a latch that engages asegment-rack W to hold said lever in adjusted position.

In practice the blades H are swung from alongside the vessel to ahorizontal position or the reverse as a result of an engagement of theclutch S with the gear-wheel R and a rotation of the shaft 0 in theproper direction. Theblades being adjusted to horizontal position andthe clutch S engaged with the worm D, said blades may'be set by properturning of shaft C to incline upward in the direction of the-movement ofthe vessel, as shown by dotted lines'in Fig. 2, the result being atendency of said vessel to lift and ride with greater buoyance, itsspeed being proportionately accelerated. It may be desirable at times toadjust the blades, so as to have them act as means for retarding motionof the vessel, and the chains 0 then serve to resist strain on saidblades.

The blades in pairs and their adjusting mechanism in connection withshaft C may be multiplied indefinitely in proportion to the length ofthe vessel, three pairs of blades being shown in the diagram Fig. 4.

Having thus described my invention, what I. claim. es new and desire tosecure by Letters Patent is- 1. A. marine vessel provided with a rotaryadjustable shaft that extends throughits sides below water-line, bladeshingejoint conneetion. with the ends of the shaft, and means for layingthe blades alongside said vessel.

2 A marine vessel provided with a rotary adjustable shaft; that extendsthrough its sides below Water-line, blades in hinge-joint eonneet'ionwith the ends of the shaft, chains in connection with the blades andvessel, and means for laying said blades alongside said vessel.

3. A marine vessel provided with s rotary,

adjustable shaft that extends threugh its sides belew' WLi1-3Z-li11 3,blades in hinge-joint eonneeii-ion with the ends of the shaft, links inuniversal-joint connection With the blades, serews for which the sidesof the vessel are presided with hesri.

nuts on the screws in swivel connection with the links and means ferturning said screws in testimony that I. claim the foregoing .i havehereunto set my hand, at Milwaukee, in the county of Milwaukee andStste'oi' Wiseensin, in the presence of two witnesses.

HENRY JOHN NULL Witnesses:

N. E. OLIPHANT,

HUGO FAX-1L

